Single trigger mechanism for double-barrel guns



Nov. 6, 1951 W. E. GARRISON SINGLE TRIGGER MECHANISM FOR DOUBLE BARREL GUNS Filed Aug. 20, 1946 3 SheetsSheet l WILLIAM E GARRISQN Nov. 6, 1951 w. E. GARRISON 2,573,339

- SINGLE TRIGGER MECHANISM FOR DOUBLE BARREL cums Filed Aug. 20, 1946 s Sheets-Shet 2 A'rru RNEYb Nov. 6, 1951 w. E. GARRISON 2,573,839

SINGLE TRIGGER MECHANISM FOR DOUBLE BARREL GUNS Filed Aug. 2 0, 1946 3 Sheets-Sheet 3 INVENTOR. WILLIAM E GARRISQN ATI'D RN EYS Patented Nov. 6, 1951 SINGLE TRIGGER MECHANISM FOR nonnLE-cARREL GUNS William E.Garrison, Denton, Tex. Application August 20, 1946, Serial No. 691,750

i 3 Claims.- (CI. 42-42) T his invention relates to firearms, and more qaiaeuan to improvements in double barreled arms whereby a single trigger is used.

If IIi is an objectof'the invention to provide-a double "barreled gun having but one trigger; one control, double pull, and a manually shifted lever for changing from one barrel to the other without interfering with the aim of the gun.

A further object is to provide a single trigger double barreled gun having means to enable both barrels to be fired in rapid succession by pulling twice on thesingle trigger.

A further object is the provision of a double barreled gun having safety means which make it impossible to fire both barrels of the gun atthe same time.

TA further objectis' that the safety isnotreleased until the handle23 has reached its" full destination.

These and other objects are attained by the novel construction and arrangement of parts hereinafter described and illustrated by the accompanying drawings, forming a part hereof, and in which:

Fig. l is a side view, partly in section, of a gun embodying the invention.

Fig. 2 is a plan view of the gun.

Fig. 3 is a plan view of a selector arrangement used in the gun, the selector being in a neutral position so that neither barrel can be fired.

Fig. 4 is a plan view of the selector in a position wherein the left barrel has just been fired.

Fig. 5 is a side view of the selector device.

Fig. 6 is a sectional view of a safety device used in the gun.

Fig. '7 is a sectional view taken on the line I-'| of Fig. 6.

Fig. 8 is a plan view of a transfer block used in the selector.

Fig. 9 is a side view of a plunger used in the selector.

Fig. 10 is a front elevational view of the transfer block and the parts carried thereby as shown in Fig. 8.

Referring to the drawings, in Figs. 3 and 4, there are shown the usual sears I and 2 of a double barreled gun. The sears I and 2 are provided, respectively, with pointed lower ends 3 and 4, which have bevelled tips 3i adapted to be engaged by the bevelled tip 30 of a plunger 5, hav ing projecting from its underside a lug 32 arranged to be received in a notch 33 on a block 34 attached to the trigger 8 of the gun. The trigger 8 has attached thereto a pin 36 which serves as a pivot for transfer block 6, which has a groove in which is positioned a coiled spring I constantly bearing against plunger 5. The transfer block 6 has two spaced feet 9 and I0 which engage a cam II on a block I2 having a lug I3 which is arranged to enter the slot 42 of post I4 or to engage the inclined sides 40 of the post.

Theblock I2 is fixed to a shaft I6, which has a pin 31 projecting into a hole 38 in the trigger 8. The shaft I6 moves in a tube I! which has a slot IS in which moves a pin I9, the latter passing through the shaft I6. A spring 20 bears against the upper end of shaft I6 and against a stub shaft 22, having a handle 23 connected thereto. A pin 2I passes through the stub shaft 22 and the tube H. A detent 45, see Fig. 1, holds the safety handle 23 in a definite centered position. When in this position, the lug I3 is in slot 42, and neither barrel of the gun can be fired, as the pull of the trigger is limited by the lug I3 in slot 42.

To fire either barrel of the gun, the handle 23 is moved to the left or to the right, moving lug I3 out of slot 42 and up against the inclined sides 40 of post I4. (See Fig. 5.) Viewing Fig. 6 it will be seen that the handle 23 is coupled to the tube I! by the pin 2|. The shaft I6 carrying the block I2 on which is formed the lug I3 being coupled to the tube IT by the pin I9, thus as the handle 23 is moved to the left or to the right the structure previously described will cause the lug I3 to move out of the slot 42. The cam II engages one of the feet 9 or In of the transfer block 6, which pivots about pin 36, and moves the lug 32 of the plunger 5 beneath one of the ends 3 or 4 of the sears, I or 2, the movement of the block 6 being limited by engagement of the feet 50 with the pins 5|, to properly align the bevelled tip 30 with the bevelled tips 3I of the sears I and 2. The movement of the block 6 is further facilitated by a roller 35 pivoted to plunger 5. (See Fig. 9.) When pressure is exerted on the trigger, it will rise as shown in Fig. 5, raising the lug 32 and the rear end of a selected sear, to slide over the bevelled tip 30 of the plunger 5 allowing the selected barrel to fire.

When the handle 23 is in position to fire the right barrel and the trigger has been squeezed for the firing of the right barrel the rear end of the right sear willv be engaged by the lug 32. Thus as the lug 32 is moved upward by the action of the trigger the lug will raise the rear end of the right sear and allow the rear end to ride upwardly over the bevelled tip 30 of the plunger 5 firing the right barrel. Then the trigger is fully released to move forward, and the handle 23 is moved into position to fire the left barrel.

fired first. Thus the-lug 32 of; plunger 53 is "un-v derlying the rear'endof the lefts'ear ready to fire the left barrel at the next pull of the trigger. barrel if the lever is transferred,from,,one. posi:

tion to the other before firing or if transferred;

between the fires will fire the unfired barrel;

If left barrel is selected first theioperation'is:

carried out in the opposite order.

The respective barrels can be fired'only after the handle or selective lever 23 has beenzmoved,

to either the right or left position unless of course the fired hammer has been recocked. It doesnot makeany difference which barrel is selected first the other barrel will. be placed immediately, in,

position for firing in rapidsuccession bylmanual movement of the handle 23.

The successive-firing of the, barrels.isvattrac tive to sportsmen who usually donot caregtofire bothbarrels at one-time; and the safetyfeatures of'the device are, positive and make it impossible to ,fire, both barrels simultaneously.

'The above description is to bevconsideredas illustrative. and not limitative of the, invention, of ,which modifications canbe made without departingfrom the spirit and scopetof the-invention as set forth in the appended v claims.

The-inventionhavingbeen described, what is claimed is:

1. Afiring mechanism, for a double. barrelled gun having a pair oflsears to hold firing. pinsin,

a-cocked condition, comprising. a single trigger,

atransfer blockpivotedlyrmounted on the-trigger,

a spring. pressedplunger, carriedrby the block,

a, bevelled tip. on the forward .end of the p lunger Thus the lug 32 of plunger 5 fires either-'5 '4 engaging the rear ends of the sears, wing portions extending from the forward end of the block in opposite directions to each other and disposed below the bevelled tip on said plunger, a pair of forwardly extending feet on said block below the wings on said plunger, a handle, a tube for mounting said handle rearwardly of said transfer block, means on said tube engaging said block for the pivoting'thereof, so thatthe tip on said plunger will selectively, engage-'the undersurface of the sears to fire one barrel of the gun and upon subsequent movement of the handle to fire the remaining barrel, and the wings on said plunger guiding; the plunger below the sears during the lateral movement of said transfer block.

2 A firing; mechanism as in claim l wherein the forward endof said plunger is provided with a forward-lyextending lug, and a roller is mounte d in-,said lug to facilitate the shifting of the block beneath the sears. I

3.. A firing mechanismas inclaiml wherein-,a

secondblock is fixed. to said trigger forwardly of, said transfer block; and a lug carriedv by said: plunger, forwardly thereof is adapted to engage thesecond block toretain said transferblockjin safety position. 7

WILLIAM E. GABRISQN.

REFERENCES CITED The-following. references are of recordin-the'. file of. this patent:

UNITED STATES PATENTS Number Name Date 894,451 MacMichael July 28, 1908] 914,516 Russ Mar. 9; 1909'- 967,969. Peterson Augz 2-3' 1910 1,051,032 Tilden Jan; 21,1913

1,500,666 Bostley July,8, 1924 2,095,525 Mariano Oct. 12, 1937 2,268,349 Stroever Dec. 30; 1941 2,409,939 Jenkinson Oct. 22, 1946 1 

